Hi Marcus,

Thanks a lot. It works now.

Best regards,

Su

2015-05-15 14:49 GMT+02:00 Marcus Müller <marcus.muel...@ettus.com>:

> There's a GR_REQUIRED_COMPONENTS CMake variable[e.g. 1]; add FILTER.
>
> Best regards,
> Marcus
> [1]
> https://github.com/marcusmueller/gr-debugme/blob/master/CMakeLists.txt#L113
>
>
> Am 15. Mai 2015 11:47:51 MESZ, schrieb Su Li <liis...@gmail.com>:
>>
>> Hi all,
>>
>> I found the problem.
>>
>> In my OOT block, I try to use mmse_fir_interpolator. Thus, in the
>> my_block_impl.h file I use the following code to include the fir
>> interpolator:
>>
>> *#include <gnuradio/filter/mmse_fir_interpolator_ff.h>*
>>
>> But when I run ctest for my block, I got the following error:
>>
>> *ImportError:
>> /home/suli/gr-ctia802_15_4/build/lib/libgnuradio-ctia802_15_4.so: undefined
>> symbol: _ZN2gr6filter24mmse_fir_interpolator_ffC1Ev*
>>
>> where ctia802_15_4 is my OOT module name. It seems that this fir filter
>> is not correctly included.
>>
>> Anyone can tell me how to fix it? Thanks in advance.
>>
>> Best regards,
>>
>> Su Li
>>
>>
>> 2015-05-14 14:33 GMT+02:00 Su Li <liis...@gmail.com>:
>>
>>> Hi Peter,
>>>
>>> Thanks for your reply and suggestions.
>>>
>>> I checked all the 4 files. I changed the original module and block names
>>> of build-in block into my module and block names. But unfortunately, the
>>> error still exists.
>>>
>>> Could it be possibly because the build-in block, in my case
>>> "clock_recovery_mm_ff" block, has some special dependency which is included
>>> in the code of the module but not in the code of the block.
>>>
>>> The type of "clock_recovery_mm_ff" block is abnormal. It is just block,
>>> not gr::block nor gr::sync_block as mentioned in the OOT tutorial . Here is
>>> the code of declaration of this block in *.h file in "include" folder.
>>>
>>> class DIGITAL_API clock_recovery_mm_ff : virtual public block
>>>
>>> In my code, I change it into
>>>
>>> class MY_MODULE_API my_block : virtual public block
>>>
>>> Thank you for your reply again.
>>>
>>> Best regards,
>>>
>>> Su Li
>>>
>>>
>>>
>>>
>>> 2015-05-13 20:36 GMT+02:00 Peter Mathys <mat...@colorado.edu>:
>>>
>>>>  I've had a similar problem when I generated files for my own module
>>>> using the gr_modtool and then copied some existing code by replacing the
>>>> file(s) that gr_modtool generates. It turns out I had overlooked that the
>>>> new "my_block" name needs to be changed in several places, like the
>>>> namespace declaration, the #include compiler directive, and the conditional
>>>> #ifndef INCLUDED ... directives. Once I updated that correctly the
>>>> AttributeError got resolved.
>>>>
>>>> -Peter-
>>>>
>>>>
>>>>
>>>> On 5/13/2015 10:38 AM, Su Li wrote:
>>>>
>>>> Dear All,
>>>>
>>>>  I am trying to make an out of tree module by following the tutorial
>>>> on Gnu radio website. I can write simple blocks in C++, compile it and
>>>> install it to it usable in Gnuradio company.
>>>>
>>>>  But for some complex block, I want to implement them based on the
>>>> gnuradio build-in blocks, for example, clock_recovery_mm_ff. So I make a
>>>> new block in my out-of-tree module and try to first "copy" the build-in
>>>> block into my out-of-tree module.
>>>>
>>>>  I changed the following 4 files in my OOT module to match the
>>>> corresponding files of the build-in block:
>>>>
>>>>  lib/my_block_impl.cc
>>>> lib/my_block_impl.h
>>>> include/my_block.h
>>>> grc/my_block.xml
>>>>
>>>>  In each file, I changed all the "clock_recovery_mm_ff" into
>>>> "my_block".
>>>>
>>>>  I can successfully make and install the block without error and
>>>> warring. But when I try to run the grc graph, an error happens.
>>>>
>>>>  AttributeError: 'module' object has no attribute 'my_block'.
>>>>
>>>>  Anyone can tell me what I should do to correct this error? Is there
>>>> any other files I should change?
>>>>
>>>>  When I make simple blocks by myself, I only change this 4 files and
>>>> it works.
>>>>
>>>>  Best regards,
>>>>
>>>>  Su Li
>>>>
>>>>
>>>> _______________________________________________
>>>> Discuss-gnuradio mailing 
>>>> listDiscuss-gnuradio@gnu.orghttps://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>>>>
>>>>
>>>>
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>>>>
>>>>
>>>
>>
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
>
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